How To Install Attic Air Baffles

How to install attic rafter vent baffles step 1.

How to install attic air baffles.

You ll need to crawl to the end of the eave and staple the baffle against the roof deck. Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. If your roof rafters have been covered over with drywall or plywood you will have to remove it in order to install the baffles. Installing baffles in a attic where the insulation has already been installed.

Install attic baffles if the attic doesn t have attic baffles let s install them. Slide a baffle so it extends from the wall plate to the roof with the soffit vent behind it. It may be easiest to locate and mark them from below. To completely cover your attic floor with insulation out to the eaves you need to install rafter vents also called insulation baffles.

Even with a 3 12 2 4 truss you are looking at a minimum r15 at the farthest edge. Step 2 in the bay. Measure the distance between your rafters and purchase enough rafter vent baffles to install one over each. These specialty vents do not affect the.

Staple the tabs of the baffle to the rafters and the wall plate spacing staples approximately 4 inches. The outside edge of the baffle should be parallel to the exterior wall sheathing. Staple each side to the roof deck spaced about every 4 inches. Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof.

As listed in the definition above the baffle is meant to regulate the flow of air. By installing the baffles properly you can increase the r value all the way out to the exterior sheathing. Just a few pointers and ideas that may make this crappy job a little easier.